/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain an copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dev.widget.ui.tag;

import ohos.agp.window.service.Display;
import ohos.agp.window.service.DisplayAttributes;
import ohos.agp.window.service.DisplayManager;
import ohos.app.Context;

import java.util.Optional;

/**
 * TagUtils
 *
 */
public class TagUtils {
    private TagUtils() throws InstantiationException {
        throw new InstantiationException("This class is not for instantiation");
    }

    /**
     * dip转px
     *
     * @param context context
     * @param dpValue dpValue值
     * @return px值
     */
    public static int dip2px(Context context, float dpValue) {
        // 获取屏幕密度
        DisplayAttributes displayAttributes = getScreenPiex(context);
        return (int) (dpValue * displayAttributes.scalDensity);
    }

    /**
     * 获取屏幕密度
     *
     * @param context context对象
     * @return 屏幕密度
     */
    public static DisplayAttributes getScreenPiex(Context context) {
        // 获取屏幕密度
        Optional<Display> display = DisplayManager.getInstance().getDefaultDisplay(context);
        DisplayAttributes displayAttributes = null;
        if (display.isPresent()) {
            displayAttributes = display.get().getAttributes();
        }
        return displayAttributes;
    }
}
